/*
 * $Id:  $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2014 iText Group NV
 * BVBA Authors: Bruno Lowagie, Balder Van Camp, et al.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by
 * the Free Software Foundation with the addition of the following permission
 * added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED
 * WORK IN WHICH THE COPYRIGHT IS OWNED BY ITEXT GROUP, ITEXT GROUP DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details. You should have received a copy of the GNU Affero General Public
 * License along with this program; if not, see http://www.gnu.org/licenses or
 * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License, a
 * covered work must retain the producer line in every PDF that is created or
 * manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving the iText software without disclosing the
 * source code of your own applications. These activities include: offering paid
 * services to customers as an ASP, serving PDFs on the fly in a web
 * application, shipping iText with a closed source product.
 *
 * For more information, please contact iText Software Corp. at this address:
 * sales@itextpdf.com
 */

using System;
using iTextSharp.tool.xml.parser.state;

namespace iTextSharp.tool.xml.parser.state
{
    /**
     *
     */

    public class ProcessingInstructionEncounteredState : TagAttributeState
    {

        protected String name = null;

        /**
         * @param parser the XMLParser
         */

        public ProcessingInstructionEncounteredState(XMLParser parser) : base(parser)
        {
        }

        /*
         * (non-Javadoc)
         *
         * @see com.itextpdf.tool.xml.parser.State#process(int)
         */

        public override void Process(char character)
        {
            String tag = parser.BufferToString();
            if (name == null && Char.IsWhiteSpace(character)) {
                if (Char.IsWhiteSpace(character))
                {
                    name = tag;
                    parser.Memory().CurrentTag(name);
                    parser.Flush();
                } else if (character == '?') {
                    parser.Flush();
                    parser.SelectState().SelfClosing();
                }
            } else {
                if (Char.IsWhiteSpace(character))
                {
                    CheckAttributeWithNoValue();
                    parser.Flush();
                } else if (character == '?') {
                    name = null;
                    CheckAttributeWithNoValue();
                    parser.Flush();
                    parser.SelectState().SelfClosing();
                } else {
                    parser.Append(character);
                }
            }
        }
    }
}
